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sommerfeltia 5 J. Middelborg & J. Mattsson Crustaceous lichenized species of the Caliciales in Norway. 1987 · sommerfeltia Volume 1. A. Hansen & P. Sunding: Flora of Macaronesia . Checklist of vascular plants. 3. revised edition. 167 pp. NOK 70.00. (January 1985 . ) Volume 2. R.H. 0kland & E. Bendiksen: The vegetation of the forest-alpine transition in Grunningsdalen, S. Norway. 224 pp. NOK 90. 00. (November 1985.) Volume 3. T. Halvorsen & L. Borgen: The perennial Macaronesian species of Bubonium (Compositae-Inuleae). 103 pp. NOK 60.00. (February 1986.) Volume 4. H.B. Gjrerum & P. Sunding: Flora of Macaronesia. Checklist of rust fungi (Uredinales). 42 pp. NOK 40.00. (December 1986.) Volume 5. J. Middelborg & J. Mattsson: Crustaceous lichenized species of the Caliciales in Norway. 71 pp. NOK 55.00. (May 1987.) Volume 6. L.N. Derrick, A.C. Jermy, & A.C. Paul: Checklist of European Pteridophytes. xx + 94 pp. NOK 70.00. (June 1987.) Orders should be sent to the address inside front cover. sommerfeltia 5 J. Middelborg & J. Mattsson Crustaceous lichenized species of the Caliciales in Norway. 1987 ISBN 82-7420-001-2 ISSN 0800-6865 Middelborg J. & Mattsson J., 1987. Crustaceous lichenized species of the Caliciales in Norway. - Sommerfeltia 5: 1-70. Oslo. ISBN 82-7420-001-2. ISSN 0800-6865. Thirty-nine species are recognized in the lichen genera Calicium Pers., Chaenotheca (Th.Fr.) Th.Fr., Cyphelium Ach., Microcalicium Vain. emend. Tibell, Sclerophora Chevall., and Thelomma Massa!. emend Tibell in Norway. The genus Cybebe is reduced to synonymy with Chaenotheca, and the new combinations Chaenotheca gracilenta (Ach.) Mattsson & Middelborg and Sclerophora coniophaea (Norm.) Mattsson & Middelborg are proposed. Three families are recognized, the Caliciaceae, the Coniocybaceae, and the Microcaliciaceae. The chemistry is described, and a number of unidentified secondary substances are characterized by their Rf values. The ecology and distribution of the species are described. Keys are given to the genera and species, and distribution maps for Norway are provided. Calicium adaequatum Nyl., Calicium adspersum Pers., Calicium corynellum Ach., Calicium parvum Tibell, Chaenotheca carthusiae (Harm.) Lett., and Microcalicium ahlneri Tibell are reported new to Norway. Keywords: Caliciales, Distribution, Ecology, Lichens, Lichen substances, Norway, Taxonomy. J0rn Middelborg & Johan Mattsson, Botanical Garden and Museum, University of Oslo, Trondheimsveien 23 B, N-0562 Oslo 5, Norway. SOMMERFELTIA 5 (1987) CONTENTS INTRODUCTION 6 MATERIAL AND METHODS ....................................... 7 RESULTS AND DISCUSSION .................................... 8 MORPHOLOGY AND ANATOMY 8 Thallus 8 Phycobionts 8 Apothecia 8 Asci 10 Spores 10 CHEMISTRY 13 Identified secondary substances 15 Unidentified secondary substances 17 ECOLOGY ................................................ 19 Ecological factors 19 Ecological groups 20 FENNOSCANDIAN DISTRIBUTION · · · · · · · · · · • • · · · ·. · ............. 22 Western element 23 Southern element 23 South-eastern element 24 Eastern element 24 Alpine element 25 Ubiquitous species 26 Remainder 26 CLASSIFICATION 26 Description of the Caliciaceae Fee 27 Description of the Coniocybaceae Reichenb. 27 Description of the Microcaliciaceae Tibell 27 DELIMITATION OF CHAENOTHECA (Th.Fr.) Th.Fr. VERSUS CYBEBE Tibell AND SCLEROPHORA Chevall. 27 Description of Chaenotheca 27 Description of Cybebe 28 Description of Sclerophora 28 The delimitation of Chaenotheca versus Cybebe 28 The delimitation of Chaenotheca versus Sclerophora 29 TAXONOMY . 30 KEY TO THE CRUSTACEOUS GENERA OF CALICIALES IN NORWAY 30 CALICIUM 30 Key to the species 31 Calicium abietinum Pers. 31 Calicium adaequatum Nyl. 33 Calicium adspersum Pers. 33 Calicium corynellum Ach. 33 Calicium denigratum (Vain.) Tibell 35 Calicium glaucellum Ach. 35 Calicium parvum Tibell 35 Calicium quercinum Pers. 35 Calicium salicinum Pers. 37 Calicium subquercinum Asah. 37 Calicium trabinellum Ach. 37 Calicium viride Pers. 40 S0MMERFELTIA 5 (1987) CHAEN0THECA (Th.Fr.) Th.Fr. 40 Key to the species 40 Chaenotheca brunneola (Ach.) Milll.Arg. 41 Chaenotheca carthusiae (Harm.) Lett. 43 Chaenotheca chrysocephala (Turn. ex Ach.) Th.Fr. 43 Chaenotheca cinerea (Pers.) Tibell 43 Chaenotheca ferruginea (Turn. ex Sm.) Migula 45 Chaenotheca furfuracea (L.) Tibell 45 Chaenotheca gracilenta (Ach.) Mattsson & Middelborg 45 Chaenotheca gracillima (Vain.) Tibell 48 Chaenotheca laevigata Nadv. 48 Chaenotheca phaeocephala (Ach.) Th.Fr. 48 Chaenotheca stemonea (Ach.) Milll.Arg. 50 Chaenotheca subroscida (Eitn.) Zahlbr. 50 Chaenotheca sulphurea (Retz.) 50 Chaenotheca trichialis (Ach.) Th.Fr. 53 Chaenotheca xyloxena Nadv. 53 CYPHELIUM Ach. 53 Key to the species 55 Cyphelium inquinans (Sm.) Trevis 55 Cyphelium karelicum (Vain.) Ras. 55 Cyphelium pinicola Tibell 57 Cyphelium tigillare (Ach.) Ach. 57 MICR0CALICIUM Vain. 57 Key to the species 59 Microcalicium ahlneri Tibell 59 Microcalicium arenarium (Hampe ex. Massa!.) Tibell 59 Microcalicium disseminatum (Ach.) Vain. 59 SCLER0PH0RA Chevall. 61 Key to the species 61 Sclerophora coniophea (Norm.) Mattsson & Middelborg 61 Sclerophora farinacea (Chevall.) Chevall. 63 Sclerophora nivea (Hoffm.) Tibell 63 Sclerophora peronella (Ach.) Tibell 63 THELOMMA Massa!. emend. Tibell 65 Thelomma ocellatum (Korber) Tibell 65 ACKNOHLEDGEHENTS ........................................... 66 REFERENCES . 6 7 INDEX ...................................................... 70 6 S0MMERFELTIA 5 (1987) INTRODUCTION The first species to be validly described in the Caliciales was Chaenotheca furfuracea (as Mucor furfuraceus) by Linnaeus in 1753. Persoon (1794) established the genus Calicium. A more thorough revision and delimitation was made by Acharius (1815- 1817), who described Coniocybe and Cyphelium. These genera were placed in the family Calicioidea together with Calicium. During the same century Chevallier (1826) described Sclerophora and Massalongo (1860) described Thelomma. Fries (1861) gave an up to-date presentation of the genera in the Caliciales and also gave a description of Chaenotheca. In the following century Vainio (1927) established Microcalicium. Schmidt (1970b) segregated the saprophytic species with active spore dispersal in the new family Mycocaliciaceae Schmidt. Tibell (1984) placed the species belonging to Coniocybe in Chaenotheca and Sclerophora, and in the new genus Cybebe. J. M. Norman was the first Norwegian who made taxonomic investigations in the Caliciales. He described the macrolichen Tholurna dissimilis (Norm.) Norm. (Norman 1861) and the tiny, but beautiful crustaceous species Coniocybe coniophaea Norm. (Norman 1868), syn Sclerophora coniophaea (Norm.) Mattsson & Middelborg. L. Tibell has made extensive taxonomic and nomenclatural studies in the Caliciales in Sweden (Tibell 1977, 1978b, 1980a), Europe (Tibell 1971), and in other regions (Tibell 1975, 1976b, 1978a and 1980b). He has recently given a comprehensive taxonomic reappraisal of the Caliciales together with a historical survey (Tibell 1984). A list of the Caliciales species occurring in Sweden and Norway is given by Santesson (1984). The primary aim of our study has been to investigate the Norwegian distribution of the species, the ecology, and the secondary substances occurring in the Norwegian members of the crustaceous Caliciales. Taxonomic problems that arose during the study have been dealt with. We have studied the crustaceous genera with passive spore disperal in the Caliciales, i.e. Calicium, Chaenotheca, Cyphelium, Microcalicium, Sclerophora, and Thelomma. Sphinctrina Fr. has not been included, partly because there is only one collection from Norway, and partly because the genus has recently been studied in Europe by Lofgren & Tibell (1979). The non-lichenized species in the Mycocaliciaceae have not been included. The macrolichen genera Sphaerophorus Pers. and Tholurna Norm. are well known from earlier studies in Norway (Krog et al. 1980), and are not included in this study. SOMMERFELTIA 5 (1987) 7 MATERIAL AND METHODS We have examined approximately 1000 specimens in the herbaria BG, 0, S, TRH, TROM, and UPS, and in the private herbaria of Gunnar Degelius and Tor T~nsberg. Field studies have been carried out in South, Central, and North Norway during 1984 and 1985. Our collections, about 450 specimens, are deposited in o. The morphological studies were carried out with binocular lenses at 10 to 30x magnifications. Detailed analyses of the spore surfaces were done by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The anatomy has been studied with the aid of light microscopes at 125x, SOOx, and 1250x magnifications. Both squash preparations and sections cut on a freezing microtome were used. Preparations of spores and algae were studied in water and 2% KOH. The spore surfaces were most easily investigated in a solution of lactophenol-cotton blue. Optimum resolution was achieved with an oil immersion condenser. The majority of the specimens have been microscopically investigated. Measurements of apothecia and spores were made, and when our results were in accordance with those of Tibell (1971, 1981) we have adopted his results. The iodine reaction of the apothecia in Calicium adaequatum and C. subquercinum was studied in a solution of iodine/potassium iodide (I). Thin-layer chromatography (TLC) was performed in accordance with the methods of Culberson & Kristinsson (1970), Culberson (1972), and Culberson & Johnson (1982). Spot tests with paraphenylene diamine